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A High-Efficiency Wind Energy Harvester for Autonomous Embedded Systems.

Davide Brunelli¹

¹Department of Industrial Engineering, University of Trento, Via Sommarive 9, Trento I-38123, Italy. davide.brunelli@unitn.it.

Sensors (Basel, Switzerland)

|March 10, 2016

Summary

This study presents a micro-wind turbine energy harvesting system for small embedded systems. It features a highly efficient electrical converter for optimal power point tracking, enabling autonomous operation.

Keywords:

energy harvesting maximum power point tracking micro wind turbine renewable energy application

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Area of Science:

Electrical Engineering
Renewable Energy Systems
Embedded Systems

Background:

The demand for autonomous, low-power embedded systems is growing.
Energy harvesting offers a solution for "deploy-and-forget" systems, avoiding battery limitations.
Wind energy is a viable source for small-scale autonomous systems.

Purpose of the Study:

To develop and characterize a micro-wind turbine energy harvesting system.
To design a highly efficient electrical converter for wind energy conversion.
To integrate the system for autonomous embedded applications.

Main Methods:

Characterization of a micro-wind turbine.
Development of a detailed behavioral model for the turbine.
Design and implementation of a high-efficiency buck-boost converter with optimal power point tracking.
System integration and experimental validation.

Main Results:

A compact energy harvesting system with a volume under 64 cm³ was developed.
The buck-boost converter demonstrated high efficiency in converting wind energy.
Optimal power point tracking was successfully implemented.
The system showed boosted efficiency across various operating conditions.

Conclusions:

The developed micro-wind turbine energy harvesting system is effective for powering small autonomous embedded systems.
The efficient electrical converter design is crucial for maximizing energy capture from wind.
This technology supports long-term, maintenance-free operation in remote or inaccessible locations.